Sash-center.



0(1). TABOR.

SASH GBNTER. APPLIOATIQN FILED JULY 25. 1907.

Patented 1000.29, 1908.

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UNrrnn STATES PATENT usaron.

CLNTON D. TABOR, OF NEWDORP, NEW YORK, ASSIGNOR TO TAOR SASH' GOMPAN-Y, 6F NEWARK, NEW JERSEY, A GORPGRATION OF NEW YORK.

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Specification of Letters Patent. Applicaties elsa .any 25, 1907. serai No. 385,426.-

Patsnted Dec. 29, 1908.

Be it known that I, CLINTQN D- TABOR, a citizen of the United States, and resident of New Dorp, in the county of Richmond and State of blew York, have invented a new and useful Improvement inSash-Centers, of which the following is a speciicajzion.

This invention relates to a sash center or' pivot ixture for pivotally connecting a vertically or horizontally swinging sash with its frame. n

The object of this invention is the productionof a simple and durable fixture of this character which will be unaffected by slight warping or relative dis vlacernent of the sash and frame,whichwillre iably hold the sash in a more or less open position and which effectuallyl prevents the weather'ifrom driving through the joint between the sash 'and 'frame when the sash isy closed.

In the accompanying drawings consisting of two sheets: l* igure 1 is a'ffragmentary side elevation of my improveds'ash center applied to a sash and trame in positiontopermit of swinging the same horizontally into an open or closed position. Figs. 2 and 3 are horizontal sections taken inline 2--3, Fig. 1, and looking in opposite directions. Fig. 4 is a vertical'longitudinal section of the sash center and the adjacent pars of the sash and frame to which the same ap lied. Figs. 5 and 6 are fragmentary ve ti-caFcross sections taken in the correspondingly numbered lines in Fig. 4. Figs. 7, 8, 9 and 10A are detached perspective views of dierent parts of the sash center.

Similar letters of reference indicate corresponding parts throughout the several views.

A represents the horizontal sill of the window frame and a, a1 the stops whichare arranged lengthwise on its upper side but out of line and separated at their opposing ends by an intervening space. n

B represents the lower horizontal bar of the window sash which is arranged above the sill and provided on its underside with stops b, 1) which are arranged out of line and separated at their o posing ends by anintervening space. In t ie closed positlonof the sash its stops b, b1 bear against the corresponding frame stops a, a1 and form a closure 1n the joint between the same.

In the spaces between the stops ofthe sash and frame is arranged the sash center which rivetelly connette the Sash and frame and which is' Constructed as fQlLQW-s 21- C. represents a bess plate secured, t@ the frame sill in the space between its stops am; provided centrally with a cylindrical hollow boss D which has its axis arranged vertically and two stop lugs E, El extendin from 1 diametrically opposite sides of the ollow boss to the adjacent ends of the frame sto s a, a1 so as to bridge the gap between the same. ln its upper side the hollow boss is provided with a diametrical slot or elongated opening consisting of an enlarged circular centra-l portion F and reduced or narrow end portions f and arranged on opposite sides of the central portion F.

Secured to the underside of the sash bar B between the opposing ends of its stops is a base plate G which is provided at opposite ends with stop lugs g, g1. These lugs engage at their outer ends with the sides of the respective sash stops and form extensions of the latter while their inner ends extend close to or hear against diametrically o posits sides of the periphery of the hollow Itloss of the frame plate, as shown in Fig. 2.

Hrepresents a ivot pin extending through the central part of the opening in the hol,- low boss and a cylindrical pivot openin the-central part of the sash plate G ang terminating at its lower end within the hollow bars while its upper end terminates within a recess y' formed in the sash behind the sash plate.

On oppositesides of the lower end of the boss and into engagement with one or another pair of radial recesses -or notchesl formed in an-annular row on the opposing surface of the sash plate around thegpivot opening i thereof. The detent teeth are `yieldingly held in engagementwith the notchesof the sash plate y a spring m sur.- rounding the upper end of the plvot pin and bearing at one end against the back of the sash late while its other end bears against a shou der on the pivot pin. This shoulder is preferably formed by means of a collar N which is detachaibly Secured t0 `the PYOt pin l I m against the saine but it is preferable to forni seat-s p 1n the collar on opposite sides of its slot which receive the ends of the head An' end prevent accidental separationot those.

parts.

Upon turning the sash the saine is centered by the pivot pin and also by the lugs of the sash plate engaging with opposite sides of the cylindrical boss on tne't'raine plate. rv hile thus turning the sash the detent teeth snap successivelyinto dinerent pairs of the notches l and when the sash 1s released the saine is yieldingly held in position by the tension of the spring m hold1n T the teeth lc in the respective notches l. 'lhe teeth are able to Wedge or crowd themselves out of one pair ot the notches preparatory to engaging another pair by tapering or rounding the faces of said. teeth, a.s shown at f liigs. 2, 6 and 9.

ln order to prevent the pivot pin and its detent teeth from being wholly withdrawn from. thehollow boss, a. stop device is provided which preferably consists of lips or shoulders 1 arranged on opposite sides ot' the detent teeth and pivot pin within the hollow boss and adapted to liniit the separation., these psrts by engagement with the underside ot the top of the boss on opposite sides t the narrow end parts f of the slot in seid oss.

When the sesh' center is applied the stop lips or shoulder?a ere separated e considerable distance from the top of the hollow boss, as shown in liigs. l end 5, so that the pressure of the spring m is not exerted against the frame plete, leaving the sash and fra-ine free to shift toward and from each other when warping.

lt will thus be seen that in my improved Sash center the parts are all permanently connected and cannot become' seperated While carried in. stock by dealers or while being handled previous to installation, thereby preventing loss of parts.

By 'engaging the stop lugs of the sash plete with the cylindrical boss of the frame pleite, the weer and strain upon thc pivot pin is re-l lieved, thus retaining tho sash more reliably in position.

ll the sash or 'lrarne should werp and draw apart this is permitted without straining the sash freine or sash center inasmuch as the detcnt teeth and pivot pin are free to slide outwardly in the hollow boss and adjust themselves to any such variations. Furthersenese more, if the sash and traine do separate slightly the stop lugs ol the sash and traine plate still overlap each other thus lorining a closure between thc parts of thc sash conter and preventing tho lorination ol' a gzip he* tween the saine which would permit thc weather to drive through.

ln pract'ce a sash center of this kind is applied to the top and bottoni of a window in which the sash turns horizontally.

Although. the drawings show my improved sash center applied to a horizontally su inging sash it is obvious that the saine may hc applied to horizontally opposite sides of a window in which the sash turns in n. vertical plane. 1t is also obvious that the sash center can be appliedto the window rcvcrsely ol` that shown in the drawings, viz: the plate cerrying'the hollow boss may he attached to the sash and the recess lor tho reception. ol' the spring and the pivot pin may hc ioruicd in the frame.

I claim as iny invention:

l. A sash center comprising two platos adapted to he secured respectively to the" sash and traine, one ol said platos linving a pivot opening and an annular row ol' notches on its lace around said opening, and the other plate having a slot providcdwith an enlarged circular portion and a narrow portion at the` side of the cincular portion, a pivot pin arranged in the pivot opening oi the notched vplate and the circulaipart ot the slotted plate and having a shoulder, a detcnt tooth arranged on said pin and projecting through the narrow part of said slot into engagement' with said notches, and a spring interposed. between the notched plate and the shoulder' on the pivot pin and operating to hold said tooth yieldingly in engagement'. ith said notches, substantially as set forth.

2. A sash center comprising two plates adapted to he secured respectively to the sash and frame, one ol: sairLplates having a pivot opening and an annular row ol' notches on its face around said opening, and the other plate having a shit provided with an enlarged. circular central portion and narrow portions on opposite sides of the central portion, a pivot pin arranged in thc pivot opening ol the notched plate and thc circular part of the slot in the other plate und having a shoulder, detent teeth arranged on o ipositc sides ol the pivot pin and projecting through the narrow portions ol, seid slot into engagement with said notches, and a spring intcr'iosod hotween said notched plate and the shoulder on the pivot pin and operating to yieldingly hold said detent teeth in engagement with said notches, suhstzintially us sot forth.

3. AL sash center comprising two plates adapted to he attached respectively to a sash and freine, one of said platos having a pivot opening and an annular row ol' notches around seid opening, a pivot pin joui-nailed the en in said pivot opening of one plate but held against turning on the other plate, a tooth arranged on the pivot pin and engaging with saidnotches, a spring surrounding the pivot pin and bearing at one -end against said notched plate, and a collar bearing against the oppositeend of said spring 'and having a slot which receives said pin, and an elon` gated head arranged on s .ld pin and bearing against said collar on opposite sides of its slot, substantially as set forth.

4. A sash center comprising two plates adapted to be attached respectively to a sash and frame, one of said plates having a pivot opening and an annular row of notches around said opening a pivot pin journaled in said pivot openingof one plate but held against turning on the other plate, a tooth arranged on the pivot pin and engaging with said notches, a spring surrounding the pivot pin and bearing at one end against said notched plate, and a collar hearing against .the opposite end of said spring *and having a slot which receives said pin, and an elongated head arranged on said pin and engaging with seats formed on said collar on opposite sides of its slot, substantially as set forth.

5. A sash center comprising two plates adapted to he attached respectively to a sash and frame, one of said plates having a pivot opening and an annular row of notches around said opening, a pivot in journaled in said pivot opening of one pate but held against turning on the other plate land having a shoulder, a tooth arranged on the pivot pin and engaging with said notches, a spring surv 'rounding the pivot pin and bearln at its olpposite ends against the notched p ate and t e shoulder on said pin, and a stop carried by the pivot pinin rear of the plate in which the in-does not turn and normally separatecl from the back of said plate, substantially as set forth.

6. A sash center comprisin two lates adapted to be attached to a sasi and rame,

- one of said plates having a pivotopening and an annular row of notches around said o ening and the other plate having a hollow oss and a slot in the top of said boss com osed of an enlarged circular central part an a narrow part on one side of said central part, a pivot pin arranged in said pivot opening and arged central part o said slot and projecting into said boss, a detent tooth arranged on the pivot pin within said boss rojectlng through the 'narrow part oi' said s ot, and a spring operating to hold said tooth yield-A ingly in engagement with said notches, substantially as set forth.

7. A sash center comprisin two lates adapted'to be attached to a sas and rame, one of said plates having a pivotopening and Van annular row of notches around said o ening and the other plate having a hollow oss and a slot in the top of said boss com dsed of an enlarged circular central part an a narrow part on one side of said central part, a pivot in arranged in said )ivot openin and the en arged central part oi said slot an projecting into said boss, aA detent tooth arranged on the pivotpin within said boss projecting through the narrow part of said slot, a spring operating to hold said tooth yieldingly in engagement with said notches, and a stop arranged on the pivot pin and normall',r separated from the back side of the top of said hollow boss, substantially as set forth.

8. A sash center comprising two lates adaptedto be attached to the sash and rame, one of said plates having a hollow cylindrical boss, stop lugs on diametrically opposite sides of said boss and a slot in the top of said boss having an enlarged circular central portion and reduced end portions on opposite sides of the central portion and the other plate having a pivot o ening, an annular row of notches'around sai opening and stop lugs adapted to engage with diametrically op 0- site sidesof the periphery of said boss an to' engage with the sides of the stop lugs adjacent to the boss, a pivot pin passing through said ivot opening and the circular part of said sllot and projecting into the hollow boss, detent teeth arranged on diametrically oplp site sides of the pivot pin within the ho ow boss and projecting through the narrow parts of said slotinto engagementwith said no tehes, a spriner surroundin the pivot pin between the bac i of the notc ed late and a collar or shoulder on the pivot pin and operating to hold the detent teeth yieldingly in engagement with said notches, and stop lips arranged on the pivot pin and detent teeth within the hollow boss and adapted to engage with the underside of the top of said boss, substantially as set forth.

Witness my hand this 19th day of July,

, CLINTGN D. TABOR. Witnesses:

ALBERT G. SoHRAFrVr, f GEORGE SWEZEY. 

